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HITSCIL

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How intraflagellar transport shapes the cilium a single molecule systems study

Sensory cilia are organelles extending like antennas from many eukaryotic cells, with crucial functions in sensing and signalling. Cilia consist of an axoneme built of microtubules, enveloped by a specialized membrane. Ciliary dev... ver más

31/05/2024

STICHTING VU

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

STICHTING VU No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

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Financiación concedida El organismo H2020 notifico la concesión del proyecto el día 2024-05-31

Línea de financiación objetivo El proyecto se financió a través de la siguiente ayuda:

ERC-2017-ADG: ERC Advanced Grant

I+D

Cerrada hace 7 años

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2 Participantes

STICHTING VU

2.50M€ | Lider

SAPIENS IBERIA

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Últimas noticias

25-11-2024: ECE En las últimas 48 horas el Organismo ECE ha otorgado 52 concesiones

25-11-2024: CMVAMADRID En las últimas 48 horas el Organismo CMVAMADRID ha otorgado 1 concesiones

25-11-2024: FUNDACION-EOI En las últimas 48 horas el Organismo FUNDACION EOI ha otorgado 6 concesiones

Duración del proyecto: 71 meses Fecha Inicio: 2018-06-08
Fecha Fin: 2024-05-31

Líder del proyecto

STICHTING VU

TRL 4-5

Presupuesto del proyecto 2M€

Descripción del proyecto Sensory cilia are organelles extending like antennas from many eukaryotic cells, with crucial functions in sensing and signalling. Cilia consist of an axoneme built of microtubules, enveloped by a specialized membrane. Ciliary development and maintenance depend critically on a specific, microtubule-based intracellular transport mechanism, intraflagellar transport (IFT). In my laboratory, we study the chemosensory cilia of C. elegans, which sense water-soluble molecules in the animal’s environment for chemotaxis. Over the past years, we have developed a unique set of quantitative, single-molecule fluorescence microscopy tools that allow us to visualize and quantify IFT dynamics with unprecedented detail in living animals. So far, our focus has been on the cooperation of the motor proteins driving IFT. The overall objective of my current proposal is to zoom out and shed light on the connection between ciliary structure, chemosensory function and IFT, from a systems perspective. Recent work has indicated that axoneme length is controlled by IFT. Preliminary results from my laboratory show that axoneme length changes dynamically in response to perturbations of IFT or cilia. Furthermore, we have shown that IFT is substantially affected upon exposure of animals to known repellent solutions. The four major aims in my proposal are to: • determine how directional changes in IFT are regulated and are affected by external disturbances, • understand the dynamics of the axonemal microtubules and how IFT affects these dynamics and vice versa, • study how sensory ciliary function affects IFT and ciliary structure, • further develop our (single-molecule) fluorescence microscopy toolbox by improving instrumentation and using better fluorescent probes and sensors. These experiments will place my lab in a unique position to push forward our understanding of the relationship between structure, function and dynamics of transport of this fascinating and fundamental organelle.

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